Gaya APA
Riyanto, S.
(2007).
THE 1 STUDENT'S CHOICE TOEFL
(
1)
.
New York:
PUSTAKA PELAJAR.
Gaya MLA
Riyanto, Slamet.
"THE 1 STUDENT'S CHOICE TOEFL".
1
New York:
PUSTAKA PELAJAR,
2007.
Printed Book.